Finding the Fourth Proportional to 2,689,563,561.08, 3,710,186,206.99 and 2,188,332,816.80
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Solution
The fourth proportional to 2,689,563,561.08, 3,710,186,206.99 and 2,188,332,816.80 is: 3,018,750,830.31
Step by Step Solution
- Step 1: Write the proportion equation
2,689,563,561.08 : 3,710,186,206.99 = 2,188,332,816.80 : x - Step 2: Convert to fraction form
2,689,563,561.08/3,710,186,206.99 = 2,188,332,816.80/x - Step 3: Cross multiply
2,689,563,561.08x = 3,710,186,206.99 × 2,188,332,816.80 - Step 4: Simplify right side
2,689,563,561.08x = 8,119,122,233,170,913,280 - Step 5: Solve for x
x = 8,119,122,233,170,913,280/2,689,563,561.08 - Step 6: Final answer
x = 3,018,750,830.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.